She is sheltered by her demon, draws comfort from her demon. The demon could have killed her with his sword (she was already dead) but did not. She follows him although he does not ask her to - he knows this and lets her do it, the sound of her heart pounding magnified in his ears. She is warm, is vulnerable; if he strikes her, she will die. One day she will leave him eternally and then there will be no more flesh to remind him of his father, he will continue uninterrupted the conquering and the drowning in blood.